NTSB investigations, 1997
466 cases where the phase of flight was Enroute.
Cases per year
| 1962 | 18 |
|---|---|
| 1963 | 28 |
| 1964 | 703 |
| 1965 | 750 |
| 1966 | 856 |
| 1967 | 893 |
| 1968 | 881 |
| 1969 | 995 |
| 1970 | 996 |
| 1971 | 941 |
| 1972 | 894 |
| 1973 | 935 |
| 1974 | 968 |
| 1975 | 977 |
| 1976 | 927 |
| 1977 | 936 |
| 1978 | 1,018 |
| 1979 | 968 |
| 1980 | 873 |
| 1981 | 881 |
| 1982 | 786 |
| 1983 | 734 |
| 1984 | 747 |
| 1985 | 704 |
| 1986 | 693 |
| 1987 | 616 |
| 1988 | 656 |
| 1989 | 590 |
| 1990 | 548 |
| 1991 | 574 |
| 1992 | 542 |
| 1993 | 533 |
| 1994 | 498 |
| 1995 | 506 |
| 1996 | 511 |
| 1997 | 466 |
| 1998 | 467 |
| 1999 | 452 |
| 2000 | 451 |
| 2001 | 396 |
| 2002 | 407 |
| 2003 | 415 |
| 2004 | 380 |
| 2005 | 390 |
| 2006 | 325 |
| 2007 | 353 |
| 2008 | 255 |
| 2009 | 309 |
| 2010 | 269 |
| 2011 | 287 |
| 2012 | 309 |
| 2013 | 280 |
| 2014 | 258 |
| 2015 | 295 |
| 2016 | 324 |
| 2017 | 275 |
| 2018 | 340 |
| 2019 | 348 |
| 2020 | 248 |
| 2021 | 323 |
| 2022 | 311 |
| 2023 | 322 |
| 2024 | 368 |
| 2025 | 347 |
| 2026 | 233 |
Where
Latest cases
Query with SQL
duckdb -csv -c "WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e.\"tier1Number\" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e.\"isDefiningEvent\", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e.\"tier1Number\" GLOB '[1-9][0-9]*'
AND (e.\"isDefiningEvent\" OR e.case_mkey IN (SELECT \"mKey\" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE \"isPre1982\"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o.\"phaseOfFlightCode\", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o.\"phaseOfFlightCode\"
WHERE o.aircrafts_position = 1 AND o.\"occurrenceNumber\" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c.\"eventDate\", c.\"highestInjuryLevel\" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c.\"eventDate\" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
WHERE year(c.\"eventDate\") = 1997
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 400)
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE year(c."eventDate") = 1997
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 400)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB MIA98FA047Accident · 2 fatalField investigationFinal reportCessna 414A · Guyton, GAInadequate maintenance of the cabin pressurization system, which resulted in inadequate pressurization and incapacitation of the pilot due to the hypoxia. Also causal was the pilot's failure to adequately monitor the cabin pressurization system.NTSB NYC98LA056Accident · Minor injuriesLimited investigationFinal reportMooney M20F · Ferncliff, VAthe improper installation of the engine oil temperature probe which resulted in oil starvation and a total loss of engine power. A factor in the accident was the pilot's overflight of available airports in an effort to reach the 'Nearest Airport' displayed on…NTSB FTW98LA078Accident · No injuriesLimited investigationFinal reportBeech 35 · Springdale, ARThe fuel exhaustion due to the pilot's failure to refuel and his inadequate pre-flight planning. Factors were the pilot's disorientation due to instrument meteorological conditions. Another factor, was the lack of suitable terrain for the pilot to execute a…NTSB DCA98MA015Accident · 1 fatalMajor investigationFinal reportBoeing 747-122 · Pacific Ocean (Pacific Ocean)The pilot-in-command's inadvertent flight into adverse weather conditions, and the difficulty of obtaining adequate weather forecasts of over-ocean turbulence. Factors contributing to the accident include the presence of clear air turbulence, and the failure…NTSB NYC98LA053Accident · Minor injuriesLimited investigationFinal reportRobinson R-22 Beta · Riverside, PAthe pilot's improper response to the low rotor RPM warning. Factors in the accident were the pilot's failure to turn for the forced landing area and the carburetor icing conditions.NTSB MIA98LA046Accident · No injuriesLimited investigationFinal reportPiper PA-28-151 · Columbia, SCThe pilot's inadequate preflight planning, and his poor in-flight decision making.NTSB MIA98LA044Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-180 · Everglades City, FLthe pilot's improper fuel management and improper in-flight planning/decision, which resulted in fuel exhaustion, loss of engine power, and a forced landing. Related factors were: the light conditions at dusk, and the lack of suitable terrain for a forced…NTSB FTW98LA071Accident · Serious injuriesLimited investigationFinal reportUnknown Quicksilver GT-500 · San Antonio, TXthe kitplane builder's improper installation of the bolts attaching the left leading edge wing strut fitting to the leading edge spar, which resulted in the eventual failure of the fitting and the ensuing loss of control. Related factors were: the…NTSB FTW98FA073Accident · 1 fatalField investigationFinal reportSwearingen SA226-T · Byers, COThe pilot inadvertently stalling the airplane and his subsequent spatial disorientation which prevented him from maintaining airplane control. Factors were excessive workload on the pilot and the dark night light conditions.NTSB NYC98LA049Accident · 1 fatalLimited investigationFinal reportBihn Mini 500 · Gettysburg, OHA loss of engine power for undetermined reasons, followed by the main rotor striking the tailboom, which resulted in the separation of a main rotor blade.NTSB NYC98LA045Accident · Serious injuriesLimited investigationFinal reportPiper PA-28R-200 · Fairplain, WVan improper overhaul of the fuel servo by the manufacturer, which resulted in the loss of engine power. Factors in the accident were the dark night conditions and rough forced landing terrain.NTSB ATL98FA025Accident · 2 fatalField investigationFinal reportCessna A150K · Jacksonville, FLthe pilot's failure to maintain adequate flying speed following a banner pick up, which resulted in a stall and an uncontrolled collision with the ground. A related factor was: the pilot allowed the maximum certificated gross weight of the airplane to be…NTSB SEA98LA024Accident · No injuriesLimited investigationFinal reportBell 206L · Idaho Falls, IDloss of engine power for undetermined reason(s). A factor relating to the accident included a dirt berm/ridge in the field where the pilot executed the forced landing.NTSB FTW98LA069Accident · Serious injuriesLimited investigationFinal reportCessna 172N · Mckinney, TXThe pilot's inadequate in-flight/planning decision which resulted in continued flight until fuel exhaustion. Related factors were incorrect fuel gauge readings and trees.NTSB LAX98LA057Accident · Serious injuriesLimited investigationFinal reportSaab-Scania 340B · Ventura, CASeat belt not used. A related factor was the unforecasted severe air turbulence.NTSB IAD98FA015Accident · 1 fatalField investigationFinal reportSocata TB-20 Trinidad · Roanoke, VALoss of engine power for undetermined reasons. A related factor was the low ceiling.NTSB FTW98LA066Accident · Minor injuriesLimited investigationFinal reportCessna 207 · Fruita, COThe total loss of engine power for undetermined reasons .NTSB NYC98LA038Accident · No injuriesLimited investigationFinal reportCessna TR182 · Owenton, KYThe pilot's inadequate preflight/inflight decision and VFR flight in instrument meteorological conditions. Contributing was a low ceiling.NTSB CHI98LA059Accident · 2 fatalLimited investigationFinal reportBellanca 17-30 · Independence, KSthe pilot's intentional flight into adverse weather. Contributing factors were low ceilings, fog, and the guy wire.NTSB LAX98FA052Accident · 2 fatalField investigationFinal reportCessna 172N · Lytle Creek, CAthe non-instrument rated pilot's inadvertent VFR flight into instrument meteorological conditions (IMC), and subsequent loss of aircraft control, due to spatial disorientation. Factors relating to the accident were: the adverse weather conditions (low ceiling…NTSB CHI98LA055Accident · Minor injuriesLimited investigationFinal reportPiper PA-24 · Cairo, MOa fractured muffler, failure of the owner/pilot to ensured that the annual maintenance inspection had been completed before flight, and subsequent pilot incapacitation due to carbon monoxide poisoning.NTSB ATL98LA020Accident · No injuriesLimited investigationFinal reportCessna 172B · Henderson, NCThe loss of engine power for undetermined reasons.NTSB ATL98LA018Accident · 1 fatalLimited investigationFinal reportJohn T. Simpson Challenger II · Rainbow City, ALThe pilot's failure to maintain adequate airspeed which resulted in a stall and subsequent impact with the ground. A related factor was the pilot's lack of flying experience.NTSB LAX98FA050Accident · 2 fatalField investigationFinal reportMooney M20J · Sedona, AZthe failure of the pilot to maintain adequate terrain clearance during the climb. Contributing factors were dark night conditions, mountainous/hilly terrain, and mountain wave weather conditions.NTSB NYC98LA037Accident · Serious injuriesLimited investigationFinal reportCessna A152 · Moriches, NYA loss of engine power for undetermined reasons.NTSB MIA98LA037Accident · Minor injuriesLimited investigationFinal reportCessna FR-172J · Marietta, GAA catastrophic failure of the oil cooler core which led to overboard porting of lubricating oil and subsequent engine failure.NTSB MIA98FA038Accident · 1 fatalField investigationFinal reportCessna C-182E · Townsend, TNthe pilot's failure to maintain VFR flight conditions in a mountainous area resulting in inflight collision with rising terrain.NTSB MIA98FA040Accident · 3 fatalField investigationFinal reportCommander 114B · Cross City, FLVFR flight by the noninstrument-rated pilot into instrument meteorological conditions (IMC), and his failure to maintain control of the aircraft, due to spatial disorientation, which resulted in an uncontrolled descent and collision with the terrain (tree,…NTSB FTW98LA059Accident · No injuriesLimited investigationFinal reportMooney M20F · Stuttgart, ARthe pilot's failure to activate the runway lights, which led to his selection of a closed/abandoned runway for the landing. Factors relating to the accident were: the unlatched cabin door, and the lack of lighting conditions at dusk.NTSB LAX98LA047Accident · No injuriesLimited investigationFinal reportCessna 182F · Palmdale, CALoss of engine power due to icing conditions which plugged the fuel system vent.NTSB ATL98FA017Accident · 4 fatalField investigationFinal reportMark Ewart Velocity Standard RG · Florence, SCimproper maintenance procedures used by the pilot/repairman, which resulted in the loosening and eventual failure of the propeller. Factors relating to the accident were: the pilot's self-imposed pressure to hurry to the destination, and trees in the forced…NTSB SEA98LA017Accident · Minor injuriesLimited investigationFinal reportBell TH-1L · Canby, ORThe pilot's allowance of excessive airspeed resulting in the long-line hook impacting the tail rotor, and his allowance of an airspeed bleed-off preventing a successful run-on landing due to a loss of yaw control.NTSB CHI98FA048Accident · 1 fatalField investigationFinal reportCessna 172E · Topeka, KSthe pilot's improper use of carburetor heat. Contributing factors were carburetor icing conditions, dark night conditions, and the transmission wire.NTSB LAX98FA043Accident · 1 fatalField investigationFinal reportCessna 172N · La Jolla, CAthe pilot's act of suicide by intentionally diving his aircraft into the ocean.NTSB IAD98FA012Accident · 2 fatalField investigationFinal reportCessna 182A · New Dover, OHThe pilot's attempted VFR flight into instrument conditions and the loss of aircraft ctontrol subsequent to the pilot's spatial disorientation. Contributing factors were low ceilings, snow and the pilot's failure to obtain a preflight weather briefing, as…NTSB FTW98FA056Accident · 2 fatalField investigationFinal reportBeech 95-B55 · Royse City, TXThe pilot's impairment due to drugs, and his ensuing failure to maintain minimum required airspeed for flight, which resulted in a stall/spin. A factors was the loss of power to both engines due to fuel starvation as a result of the pilot's improper use of…NTSB CHI98LA046Accident · Minor injuriesLimited investigationFinal reportLuscombe 8A · Lincoln, NEthe throttle linkage coming apart in flight, and the inadvertent stall.NTSB FTW98LA055Accident · Minor injuriesLimited investigationFinal reportPiper PA-32RT-300T · Midlothian, TXfatigue failure of the #2 cylinder fuel injection line in an area where the line was previously damaged, which resulted in an in-flight engine compartment fire and a forced landing. Related factors were: the previous damage of the fuel injector line, and the…NTSB FTW98LA054Accident · No injuriesLimited investigationFinal reportCessna 150M · Tajique, NMThe loss of engine power due to carburetor ice. Factors included unsuitable terrain, and dark night conditions.NTSB CHI98LA041Accident · No injuriesLimited investigationFinal reportBeech 95-B55 · Burlington, KSan undetermined event resulting in the door seal inflation pump catching fire, the pilot's failure to close the cockpit air vents allowing heat and flames from the airplane's nose section to melt electrical wiring behind the instrument panel, and the pilot…NTSB CHI98LA040Accident · Serious injuriesLimited investigationFinal reportCessna 172 · Salem, INthe pilot's misjudgment of distance and altitude, while on final approach to land at night. Factors relating to the accident included: an undetermined electrical malfunction, inoperative flaps, darkness, the pilot not using the landing light, and the…NTSB MIA98LA034Accident · Minor injuriesLimited investigationFinal reportCessna 152 · Palatka, FLthe student pilot's failure to properly secure the oilcap/dipstick within it's integral oil filler tube during his preflight inspection.NTSB MIA98LA033Accident · 1 fatalLimited investigationFinal reportMooney M20C · Sparta, TNThe pilot's inadequate preflight and inflight decision and his inadvertent VFR flight into instrument meteorological conditions. Contributing factors are self induced pressure, mountainous terrain, and low clouds.NTSB FTW98FA067Accident · 1 fatalField investigationFinal reportCessna 180 · Johnson City, TXThe pilot's failure to maintain obstacle clearance. Factors were the low ceilings, dark night light conditions, and the pilot's lack of visible horizon in the unpopulated area.NTSB CHI98LA036Accident · No injuriesLimited investigationFinal reportPiper PA-28-180 · Willmar, MNthe pilot's improper planning/decision, his continued flight into known adverse weather, and subsequent fuel exhaustion, which resulted in loss of engine power, and a forced landing. Factors related to the accident were: the adverse weather conditions, the…NTSB CHI98LA034Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-235 · Ulysses, KSthe pilot's continued flight into adverse weather conditions, his failure to activate the pitot heat system, and his failure to maintain clearance from the terrain. Factors associated with this accident were: the pilot did not obtain a preflight weather…NTSB LAX98LA033Accident · Serious injuriesLimited investigationFinal reportWaco YMF-5 · Sedona, AZThe failure and separation of the propeller for undetermined reasons.NTSB FTW98FA044Accident · 1 fatalField investigationFinal reportPiper PA-34-200T · Myton, UTThe pilot exceeded the design stress limits of the airplane which resulted in an in-flight airframe overload failure. A related factor was the dark night.NTSB CHI98LA032Accident · No injuriesLimited investigationFinal reportCessna 421A · Tomahawk, WIthe elevator trim tab bolt backed out, allowing the trim tab to flutter, and destroy the elevator. The factors involved were improper annual inspection by the maintenance personnel, and the inadequate aircraft preflight done by the pilot.NTSB ATL98FA007Accident · 1 fatalField investigationFinal reportChampion 7ECA · Hamilton, GAVFR flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain sufficient altitude or clearance from mountainous terrain. Related factors were: darkness, adverse weather conditions, and the pilot's self induced pressure…